Manufacture of roofing-felt



(No Model.)

H. M. MINYBR.

MANUFAGTURE `0F ROOPING FELT.

UNirED STATES PATENT OFFICE.

HENRY M. MINER, OF GREEN POINT, NEW' YORK.

MANUFACTURE OF .ROOFING-FELT..

SPECIFICATION forming part of Letters Patent No. 380,915, dated April 10, 1888.

Application filed July 15, 1887. Serial No. $244,417.

,To AZZ whom, it may'coneern:

Be it known that I, HENRY M. MINER, a citizen of the United States, residing at Green Point, in the county of Kings and State of New York, have invented certain new and useful Improvements in the Manufacture of Rooling- Felt; and I do hereby declare the following to bea full, clear, and exactdescription of the invention, reference being had to the accompanying drawing, which forms part of this specication.

This invention has relation tothe manufacture of4 that class of roofing material composed, essentially, of a sheet of paper or felt coated or saturated with tar or composition and having a surface of sand or gravel, and has for its object the provision of a novel apparatus whereby the several operations of coating and sanding may be accomplished in an expeditious and effective manner.

My invention consists in the novel construetion and combination of parts, having reference particularly to, first, the special means for applying the tar or composition to one side only of the felt or paper, and, second, the special means for applying to the coated surfacea layer of hot sand.

In the accompanying drawing, wherein is represented an organized plant for the preparation of the roofing material, the coating and sanding` appliances are shown in vertical longitudinal section upon a long frame or supporting-structure.

A designates the main frame, consisting of a suitable skeleton work of elongated rectangular form. At one end of this frame is located the coating appliances, of which B is the coating-roller, C the tank or trough into which the latter dips, O the reel to hold the roll of uncoated felt or paper, and E E rolls around and under which the paper or felt is fed after being coated. The several rolls are arranged transversely of the frame and mounted in suitablebearings. Thecoating-rollislocatedmidway between the reel and the roller E, and consists simply of a cylinder around which is wrapped a piece of matting or other material, which will serve to take up the liquid tar and brush it upon the surface of the felt or paper. The supply-trough C is located below the axis of the roller B, so that the lower part of the latter will dipinto the liquid. The latter is A (No model.)

supplied through a spout or conduit, b, from a suitably-located tank or kettle, E.

G designates the sand-hopper, mounted on rollers g g and placed upon rails hh, over which it may easily be drawn to and fro. A clamp, H, is tit-ted to the back of the hopper to receive and hold the end of the sheet of felt or paper. A suitable gate is fitted to the hopper, which is to be kept closed while the hopper is moving outward and opened on its return. The hopper is supplied with hot sand from a heating-tank, G', located at any suitable point and having a spout or conduit leading to the hopper. The kettle or boiler F, tank or trough C, and sand-hopper G are severally heated by steam from a suitable source, coils of pipe being arranged in each for this purpose.

The operation is as follows: The roll of paper or felt being mounted in place on the roll, the end of the sheet is drawn over the coatingroller B, thence back and around the roller E, then returned forward above the coating-roller and first top of felt and under the roller E. The end of the sheet is then clamped to the back of the sand-hopper.V All being now in readiness, the hopper is drawn or pushed forward quickly, While the felt is unrolled from the reel, and in passing over the coating-roller is covered with the hot liquid tar or composition on one side only. In returning from the coating-'roller the coated side of the sheetis up, and as it passes under the roller E the contact or pressure of the latter removes the surplus coating. After the sand-hopper reaches the end of its path-say a distance of seventy-ve or eighty feet-the sheet is severed from the length on the reel, the forward end removed from the clamp, and the sheet allowed to drop down. The gate of the hopper is now opened and the former, containing hot sand, drawn back above the coated sheet, allowing its contents to escape in a thin stream, which falls upon the coated surface of the felt and becomes embedded in and incorporated with it.

,In an application, Serial No. 267,525, filed March 17, 1888, I have described and'claimed, broadly, the method of applying heated sand to the coated surface of roofing-felt, and hence do not claim the same in this application.

Having described my invention, whatlfclaim, and desire to secure by Letters Patent, isl

l. In an apparatus for the manufacture of IOO roofing fabric, the combination, with the main frame A, of the paper-reel C', return-roll E, coating-roll B, and pressure and surplus-re moving roll E', located directly above the coatingroll B, substantially as set forth.

2. In an organized plantor apparatus for the manufacture of roofing material, the combination of the following elements, to Wit: a main irame, aseries of rolls for feeding, coating, and returning the felt from the reel over the coating-roller, a supplytrough below the coatingroller, a traveling sand-hopper, a sand-heater located on or near the line of travel of the hopper and having means of communication therewith, a tar boiler or kettle, and a steam-gener- 15 ator having pipes leading to the boiling-kettle, the coating-roller trough, and the sand-heater, substantially as described.

In testimony that I claim the foregoing I havehereunto set my hand this 7th day of July, 2o 1887.

HENRY M. MINER. 

